Improvement in windmills



UNITEn STATES PrrrEN'rv CFFIGE.

WILLIE E. DEWEY, OF DELAVAN, WISCONSIN.

IMPROVEMENT IN WINDMILLS.

Specification forming part of Letters Patent No. 171,925, dated January11, 1876; application filed l September 16, 1875.

The nature of my invention consists in the construction and arrangementof a windmill, as will be hereinafter more fully set forth.

In the accompanying drawing, Figure 1 is a side elevation of mywindmill. Fig. 2 is a detailed section of a part thereof. Y

A is the ordinary frame or tower. B is the bed-piece, having projectingdownward from its lower side a hollow tube orcone, U, which revolvesfreely with the 'vane E when it turns to the wind. From the back part ofthe bed- -piece B- projects upward and forward a curve,

B1, the upper end of said curve being connected with the front end ofthe bed-piece by a brace, B2. The whirling bed-piece D, Which is themain support for the head, is hung upon two hollow tapering pivots, aa', inserted in the bed-piece B and curve B1, as shown in Fig. 2. n isthe upper pulley for the regulatin g-chain m. h is the pitman-rod, whichpasses through the hollow pivots a a', and is connected by a pitman, a,with a crank-pin, t', on the disk d, said disk being secured to theinner end of the wheel-shaft b, which passes through the hollow arm orbar D1 of the bed piece D. G is the wind-wheel. On top of the curve B1is bolted a bracket, J, for the regulating-arm H, said arm beingL-shaped and pivoted to said bracket. D2 is an Iarm projecting from thewhirling bed-piece D, and connected by a rod, e, with the lower end ofthe arm H, and upon the upper end of said arm H is a weight, I, whichtends to throw the mill out of gear( u( is\thre lowerregulating-pulleyLover which the regulating-chain m passes. By pullingon this chain the mill may be thrown in gear ready for use. f

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. ThecombinationoflthebracketJ, weighted regulating-arm H,connecting-rod e, and whirling bed-piece D, with arm D2, substantiallyas and for the purposes herein set forth.

2. The combination of the bed-piece B, with curve B1 and brace B2, .thewhirling bed-piece D, having tapering/pivots a a', tube C, pitman h,weighted regulating-arm H, and rodv e, connecting the arm H with the armD2, all combined substantially as and for thepurposes herein set forth.L

In testimony that I claim the foregoing as my own, I affix my signaturein presence of two witnesses.

WILLIE E. DEWEY. Witnesses:

LYMAN H. SEAVER, E. W. BLANcHARD.

